> ## Documentation Index
> Fetch the complete documentation index at: https://docs.trynito.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Nito CLI

> Install the nito command line, sign in, and find every terminal command at a glance, each linking to its full reference.

The `nito` command line brings Nito to your terminal: ask a question, compare models with Fusion, run a private prompt your harness never sees, or launch a full Claude Code or Codex session routed through Nito. One browser sign-in, no API key, reaches every model across every provider, and each answer names the model and privacy level that served it.

If you installed the plugin, you already have it: setup installed `nito` alongside the plugin, and it is what powers `private`, session launches, and file attachments behind the scenes. Most people never run it directly, but reach for it to install or repair a harness, to ask or run Fusion without opening a chat, or to launch a Nito-routed session from a script.

<Note>
  These commands run in your **terminal**. Plugin commands like `/nito:ask` and `$nito:ask` run **inside a Claude Code or Codex session**. Same account either way, but not the same place to type.
</Note>

## Install

From nothing to a first answer in three commands. No API key: `nito` signs in through your browser and keeps the credential in your OS keychain.

<Steps>
  <Step title="Install">
    Requires Node.js 18 or newer.

    ```bash theme={"theme":{"light":"github-light","dark":"github-dark"},"languages":{"custom":["typescript","python","curl"]}}
    npm install -g nito-ai
    nito --version
    ```
  </Step>

  <Step title="Sign in">
    Opens your browser to approve, then stores the credential locally.

    ```bash theme={"theme":{"light":"github-light","dark":"github-dark"},"languages":{"custom":["typescript","python","curl"]}}
    nito agent login
    nito agent status      # confirm the active profile
    ```
  </Step>

  <Step title="Ask something">
    ```bash theme={"theme":{"light":"github-light","dark":"github-dark"},"languages":{"custom":["typescript","python","curl"]}}
    nito ask "Summarize what a Merkle proof guarantees."
    ```

    The answer prints with a label showing the model and privacy level that served it.
  </Step>
</Steps>

**Using Nito inside Claude Code or Codex instead?** The same binary installs the plugin: run `nito setup claude` or `nito setup codex`. Full walkthroughs: [Claude Code](/get-started/install-claude-code), [Codex](/get-started/install-codex).

## Commands

Every terminal command, with a link to its full reference. Each takes `--help` for its exact flags and defaults.

| Command                   | What it does                                                                         | Reference                                                  |
| :------------------------ | :----------------------------------------------------------------------------------- | :--------------------------------------------------------- |
| `nito ask`                | Ask one question and print the answer.                                               | [Ask and Fusion](/cli/ask-and-fusion-from-terminal)        |
| `nito fusion`             | Run one question across two or three models for a single reconciled answer.          | [Ask and Fusion](/cli/ask-and-fusion-from-terminal)        |
| `nito claude`             | Start an isolated Claude Code session routed through Nito.                           | [Session Launchers](/cli/session-launchers)                |
| `nito codex`              | Start an isolated Codex session routed through Nito.                                 | [Session Launchers](/cli/session-launchers)                |
| `nito doctor`             | Check your install, credentials, and harness integrations.                           | [Doctor and Update](/cli/doctor-and-update)                |
| `nito update`             | Upgrade Nito and refresh managed integrations.                                       | [Doctor and Update](/cli/doctor-and-update)                |
| `nito agent`              | Create an account, sign in, check status, browse models, and set your default model. | [Account and Models](/cli/account-and-models)              |
| `nito completion <shell>` | Print a tab-completion script for bash, zsh, fish, or PowerShell.                    | [Shell Completions](/cli/shell-completions)                |
| `nito setup <harness>`    | Install and authorize a harness integration.                                         | [Install in Claude Code](/get-started/install-claude-code) |
| `nito welcome`            | Replay the host-aware welcome message.                                               |                                                            |

**Global flags** (any command): `--quiet`, `--verbose`, `--no-color`, `--config <path>`, `--version`, `--help`.

## Going Further

<CardGroup cols={2}>
  <Card title="Scripting and Automation" icon="terminal" href="/cli/scripting-and-automation">
    Output formats, exit codes, and piping for pipelines, git hooks, and CI.
  </Card>

  <Card title="Nito MCP Server" icon="plug" href="/cli/mcp-tools">
    Run the MCP server so any host or agent can call the same Nito tools.
  </Card>
</CardGroup>

## Highlights

<CardGroup cols={3}>
  <Card title="Privacy-first" icon="lock" href="/privacy/overview">
    Browser sign-in, no API key. Every answer names its privacy level, and `private` runs a turn your harness never sends upstream.
  </Card>

  <Card title="Every model, one sign-in" icon="layer-group" href="/commands/choosing-a-model">
    Frontier and open-weight models across providers, reachable from a single command. Compare several at once with Fusion.
  </Card>

  <Card title="Scriptable" icon="terminal" href="/cli/scripting-and-automation">
    Structured JSON output, stdin piping, exit codes, and shell completions for bash, zsh, fish, and PowerShell.
  </Card>
</CardGroup>